Someone please help me

What causes the cyclical changes in the appearance of the moon?

The blue segment below is a diameter of oo. what is the length of the radius of the circle?

Which statements describe cultural influences? florida is bordered by water on three sides. french is spoken in parts of louisiana. forests are cleared to provide space for cattle grazing. male children are encouraged to attend the university. the longest river on the continent is located here. birthdays are celebrated on january 1st. per capita income of northern buckland is more than $100,000.